Tab portion of a shingle



FIG. 1 is a frontal view of the tab portion of the shingle of the design;

FIG. 2 is a right side view thereof; and,

FIG. 3 is a lower edge view thereof.

The phantom lines indicate the outline of environment of the design of the present; namely of that tab portion of a shingle which does not form part of the design.

The rear view of the tab portion of a shingle is plain and unornamented. 

The ornamental design for the tab portion of a shingle, as shown and described. 